Flaming-machine



(No Model.)

A. B. HUTGHINSON & E. P. AUTEIVRIE'IE.A

"PLANING MACHINE.

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UNITED STATES- ATENT OFFICE.

ALFRED B. HUTCHINSON, OF BROOKLYN, AND ERNST F. AUTENRIETH, OF NEW YORK, ASSIGNORS TO THE GLEN COVE MACHINE COMPANY, (LIM- ITED,) OF BROOKLYN, NEWv YORK. Y

VPLANINC-IVIACHINE.

SPECIFICATION forming lpart of Letters Patent No. 420,202, dated January 28, 1890.

Application filed April 20, 1889. Serial No. 307,975. (No model.)

To all whom t may concern:

Be it known that we, ALFRED B. HUTCH- INSON, of Brooklyn, in the county of Kingsl and 'State of New York, and ERNST F. AU-

TENRIETH, of the city, county, and State of New York, have invented a certain new and useful Improvement in Planing-Machines, of which the following is a' specification.

Our improvement relates more particularly 1o to the pressure-rollers employed in planingmachines.

IVe will describe in detail a planing-machine embodying our improvement, and then point out the novel features in the claim.

In the accompanying drawings, Figure l is a side elevation of a planing-machine embodying our improvement, Vand Fig. 2 is a plan or top View of the same. Fig. 3 is a detail view, partly in section, showing a rolling 2o bearing for certain shafts employed in the machine.

Similar letters of reference designate corresponding parts in all the figures.

Adesignates the side frame of the machine.

B designates the upper cuttenhead, and C the side cutter-heads.

D designates the lower cutter-head.

E E designate, respectively, upper and lower feeding-rollers. All the several cutterheads are provided with journals, or have spindles supported in suitable boxes andare driven by belting in the usual way. The spindles of the side cutter-heads are journaled in frames C2, supported for the most part upon a bar C3, extending crosswise of the machine and supported at its ends in boxes C4. The frames C2 may be adjusted laterally upon the bar C8 in the usual manner. The lower cutter-head is journaled in 4o a cutter-head frameAD, as is usual, and in front of the cutter-head is a bar or mouthpiece D5.

D5 designates a cross-bar extending crosswise of the machine, which cross-bar is provided with downwardlyextending arms D5,

which are pivoted at CZ to the frame A. Secured to the cross-bar D5 and its arms D5 is an extension-table D8. Clamps D?, provided with set-screws cl and bearing against the cross-bar D5, may be operated to draw the cross-bar and the extension-table toward the cutter-head. The upper cutter-head B is supported in boxes B2, mounted upon slides B3 in the usual manner. The boxes B2 are provided with brackets b, to which are secured a holder B4 for a pressure-bar and chipbreaker B5. The chipbreaker may be adjusted toward and from the cutter-head by means of adj Listing-screws b4.

The lower feed-rollers E are iitted in sta- 6o tionary bearings e.. Motion is transmitted to them by means of a pinion f, mounted upon a pinion-shaft F. The pinion f is geared into a gear-wheel F. The gear-wheel F gears into gear-wheels `F2 F5, which aremounted on 65 the shafts e of two of the lower feed-rollers. An intermediate gear-wheel f transmits motion from the gear-wheel F5 to the gear-wheel F4, mounted upon the shaft e of the other of the lower feed-rollers E.

In our machine the upper feed-rollers are driven directly from the' lower feed-rollers, and the use of expansion-gear as ordinarily employed is wholly dispensed with. In order to accomplish this, we provide each of the shafts e of the lower feed-rollers with so-called star-gears G, which star-gears take into another stargear Gr', mounted on shafts g for the upper feed-rollers E. It is to be borne in mind that the upper feed-rollers yield as the 8o lumber is passed between them, or, in other words, they are brought nearer to or farther from the lower feed-rollers as the lumber varies in thickness. In order to keep the upper rollers in operation, it has been customary to employ a socalled expansion-gear, which will compensate for the variations of position of the upper rollers. This expansion-gear is expensive and cumbersome, and applicants have discovered that by the use of star-gears 9o the expansion-gears may be done away with. The star-gears here shown are formed with two sets of teeth, the teeth of one set coming opposite the spaces between the teeth of the other set. Between the two sets of teeth are plates g. The whole, however, including the two sets of teeth and the plates g', may be cast in one piece. This construction of the wheel avoids noise and lost motion. The shafts g are journaled in yokes G2, which loo yokegsvar'e hung at their rear' ends upon rockshafts G3, which rock-shafts are independent of each other and are journaled in upwardlyextending bracketsV G4, secured upon the frame A. The yokes may therefore swing freely to allow the upper rollers to rise and fall. The outer end portions of the yokes G2 are provided with vertically-extending apertures, through which extend crank-shafts G5,

upon the upper ends of which are cranks G5.

Collars g2, secured upon thecrank-shafts G5 on the opposite sides of the yokes G2, prevent independent longitudinal movement of the crank-shafts. The upper of the collars g2 constitute rolling bearings for the rock-shaft G5, as shown more clearly in Fig. 3. The under side of said collar is arc-shaped, and rests when in position in correspondingly-aroshaped recesses formed on the `upper sides of .the yokes G2. The apertures in. the yokes through which the shafts G5 pass are some- 2 what elongated,.and when the lyokes G2 are swung up and down they will not tend to bind or deeot the shafts G5. The under sides of the yokes. are also shown as arc-shaped. v v

Near the forward end of the machine, or

that. end at which the lumber enters, wehave shown two of the vupper feed-rollers as being controlled by a single equalizer. This equalizercomprisesa cross bar or yoke H, connected by a link or rod H with a weighted lever H2. The ends of the` cross bar or yoke Hare bifuroated, and extend over lugs or projections h, extending from nuts h', which nutshave a screw-threaded engagement with,

the screw-threaded ends of the shafts G5. The

tendency of the weighted lever H2 iS 'EO llOld the nuts h against lugs or projections h2, extending from the frame of the machine. When the feed-rollers E are elevated by the lumber passing between them, they are so elevated against the resistance of the weigh ted lever H2. By rotating the crank-shaft G5 the feed-rollers may be raised into any desired position. At the rear or delivery end of the machine a Weighted lever H5 operates only upon a single shaft G5. The shaft G5 is in this instance provided at its lower end with a turn-buckle H4, in which the weighted lever hangs. The nuts 71, may be prevented from turning byprovidi'ng them with square or angular exteriors, or in any other suitable manner.

What we claim as our invention, and desire to secure by Letters Patent, is-.- Y

In a planing-machine, the combinatiomwith lower feed-rollers, of upper feed-rollers, swinging yokes in which said upper feed-.rollers are journaled, star gear-,wheels upon the journals of the lower feed rollers, star gear-wheels upon the journals of the upper feed-rollers, said star gear-wheels intermeshing in order to transmitrmotion from said lower feed-rollers to the upper feed-rollers, crank-shafts having roller-bearings in` said swinging yokes, nuts with which said crank-shafts engage, and weighted levers acting on said nuts to draw the crank-shafts downwardly, substantially as specified. j, r Y,

ALFRED B. HUTCHINSON. ERNST F. AUTENRIETH. Witnesses:

W. W. UNDERHILL, JNO. P. LAIR. 

